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数学
RECENT PROGRESS IN RESEARCH OF THE PERMIAN SYSTEM IN SOUTHERN GUIZHOU
<正> For a long time the Permian System in Southern China has been divided into two units, and the triple division suggestion has also been discussed abroad and at home.Southern Guizhou is a favourable area for research in the Permian division. Here, the Permian strata are fully developed. They are of various sedimentary types and are abundant in fossils. In 1984, Guizhou Petroleum Prospecting and Locating Command Department of PIM have launched a research in the Permian System of south-
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Chinese Science Bulletin
1989年04期

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